@@ -468,16 +468,15 @@ static void dc390_write_config(PCIDevice *dev,
static void dc390_scsi_realize(PCIDevice *dev, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
DC390State *pci = DC390(dev);
- Error *err = NULL;
uint8_t *contents;
uint16_t chksum = 0;
int i;
/* init base class */
- esp_pci_scsi_realize(dev, &err);
- if (err) {
- error_propagate(errp, err);
+ esp_pci_scsi_realize(dev, errp);
+ if (*errp) {
return;
}
@@ -1272,28 +1272,27 @@ static const struct SCSIBusInfo mptsas_scsi_info = {
static void mptsas_scsi_realize(PCIDevice *dev, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
MPTSASState *s = MPT_SAS(dev);
- Error *err = NULL;
int ret;
dev->config[PCI_LATENCY_TIMER] = 0;
dev->config[PCI_INTERRUPT_PIN] = 0x01;
if (s->msi != ON_OFF_AUTO_OFF) {
- ret = msi_init(dev, 0, 1, true, false, &err);
+ ret = msi_init(dev, 0, 1, true, false, errp);
/* Any error other than -ENOTSUP(board's MSI support is broken)
* is a programming error */
assert(!ret || ret == -ENOTSUP);
if (ret && s->msi == ON_OFF_AUTO_ON) {
/* Can't satisfy user's explicit msi=on request, fail */
- error_append_hint(&err, "You have to use msi=auto (default) or "
- "msi=off with this machine type.\n");
- error_propagate(errp, err);
+ error_append_hint(errp, "You have to use msi=auto (default) or "
+ "msi=off with this machine type.\n");
return;
}
- assert(!err || s->msi == ON_OFF_AUTO_AUTO);
+ assert(!*errp || s->msi == ON_OFF_AUTO_AUTO);
/* With msi=auto, we fall back to MSI off silently */
- error_free(err);
+ error_free_errp(errp);
/* Only used for migration. */
s->msi_in_use = (ret == 0);
@@ -154,10 +154,10 @@ static void scsi_dma_restart_cb(void *opaque, int running, RunState state)
static void scsi_qdev_realize(DeviceState *qdev, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
SCSIDevice *dev = SCSI_DEVICE(qdev);
SCSIBus *bus = DO_UPCAST(SCSIBus, qbus, dev->qdev.parent_bus);
SCSIDevice *d;
- Error *local_err = NULL;
if (dev->channel > bus->info->max_channel) {
error_setg(errp, "bad scsi channel id: %d", dev->channel);
@@ -205,9 +205,8 @@ static void scsi_qdev_realize(DeviceState *qdev, Error **errp)
}
QTAILQ_INIT(&dev->requests);
- scsi_device_realize(dev, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
+ scsi_device_realize(dev, errp);
+ if (*errp) {
return;
}
dev->vmsentry = qdev_add_vm_change_state_handler(DEVICE(dev),
@@ -234,10 +233,10 @@ SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk,
BlockdevOnError werror,
const char *serial, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
const char *driver;
char *name;
DeviceState *dev;
- Error *err = NULL;
driver = blk_is_sg(blk) ? "scsi-generic" : "scsi-disk";
dev = qdev_create(&bus->qbus, driver);
@@ -256,15 +255,13 @@ SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk,
if (serial && object_property_find(OBJECT(dev), "serial", NULL)) {
qdev_prop_set_string(dev, "serial", serial);
}
- qdev_prop_set_drive(dev, "drive", blk, &err);
- if (err) {
- error_propagate(errp, err);
+ qdev_prop_set_drive(dev, "drive", blk, errp);
+ if (*errp) {
object_unparent(OBJECT(dev));
return NULL;
}
- object_property_set_bool(OBJECT(dev), share_rw, "share-rw", &err);
- if (err != NULL) {
- error_propagate(errp, err);
+ object_property_set_bool(OBJECT(dev), share_rw, "share-rw", errp);
+ if (*errp) {
object_unparent(OBJECT(dev));
return NULL;
}
@@ -272,9 +269,8 @@ SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk,
qdev_prop_set_enum(dev, "rerror", rerror);
qdev_prop_set_enum(dev, "werror", werror);
- object_property_set_bool(OBJECT(dev), true, "realized", &err);
- if (err != NULL) {
- error_propagate(errp, err);
+ object_property_set_bool(OBJECT(dev), true, "realized", errp);
+ if (*errp) {
object_unparent(OBJECT(dev));
return NULL;
}
@@ -2455,13 +2455,12 @@ static void scsi_cd_realize(SCSIDevice *dev, Error **errp)
static void scsi_disk_realize(SCSIDevice *dev, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
DriveInfo *dinfo;
- Error *local_err = NULL;
if (!dev->conf.blk) {
- scsi_realize(dev, &local_err);
- assert(local_err);
- error_propagate(errp, local_err);
+ scsi_realize(dev, errp);
+ assert(*errp);
return;
}
@@ -2597,6 +2596,7 @@ static int get_device_type(SCSIDiskState *s)
static void scsi_block_realize(SCSIDevice *dev, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev);
AioContext *ctx;
int sg_version;
@@ -653,6 +653,7 @@ static void scsi_generic_reset(DeviceState *dev)
static void scsi_generic_realize(SCSIDevice *s, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
int rc;
int sg_version;
struct sg_scsi_id scsiid;
@@ -905,17 +905,16 @@ void virtio_scsi_common_realize(DeviceState *dev,
static void virtio_scsi_device_realize(DeviceState *dev, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
VirtIOSCSI *s = VIRTIO_SCSI(dev);
- Error *err = NULL;
virtio_scsi_common_realize(dev,
virtio_scsi_handle_ctrl,
virtio_scsi_handle_event,
virtio_scsi_handle_cmd,
- &err);
- if (err != NULL) {
- error_propagate(errp, err);
+ errp);
+ if (*errp) {
return;
}
If we want to add some info to errp (by error_prepend() or error_append_hint()), we must use the ERRP_AUTO_PROPAGATE macro. Otherwise, this info will not be added when errp == &fatal_err (the program will exit prior to the error_append_hint() or error_prepend() call). Fix such cases. If we want to check error after errp-function call, we need to introduce local_err and than propagate it to errp. Instead, use ERRP_AUTO_PROPAGATE macro, benefits are: 1. No need of explicit error_propagate call 2. No need of explicit local_err variable: use errp directly 3. ERRP_AUTO_PROPAGATE leaves errp as is if it's not NULL or &error_fatel, this means that we don't break error_abort (we'll abort on error_set, not on error_propagate) This commit (together with its neighbors) was generated by for f in $(git grep -l errp \*.[ch]); do \ spatch --sp-file scripts/coccinelle/auto-propagated-errp.cocci \ --macro-file scripts/cocci-macro-file.h --in-place --no-show-diff $f; \ done; then fix a bit of compilation problems: coccinelle for some reason leaves several f() { ... goto out; ... out: } patterns, with "out:" at function end. then ./python/commit-per-subsystem.py MAINTAINERS "$(< auto-msg)" (auto-msg was a file with this commit message) Still, for backporting it may be more comfortable to use only the first command and then do one huge commit. Reported-by: Kevin Wolf <kwolf@redhat.com> Reported-by: Greg Kurz <groug@kaod.org> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> --- hw/scsi/esp-pci.c | 7 +++---- hw/scsi/mptsas.c | 13 ++++++------- hw/scsi/scsi-bus.c | 24 ++++++++++-------------- hw/scsi/scsi-disk.c | 8 ++++---- hw/scsi/scsi-generic.c | 1 + hw/scsi/virtio-scsi.c | 7 +++---- 6 files changed, 27 insertions(+), 33 deletions(-)